求一道编程题,急用
											输入一个字符串判断该字符串是否是合法的C语言标识符										
					
	 2007-01-02 11:56
	    2007-01-02 11:56
   2007-01-02 12:01
	    2007-01-02 12:01
  能给出一个详细的答案啊 谢谢
 2007-01-02 12:09
	    2007-01-02 12:09
   2007-01-02 12:10
	    2007-01-02 12:10
   2007-01-02 12:12
	    2007-01-02 12:12
  
 2007-01-02 12:26
	    2007-01-02 12:26
  非常感谢
 2007-01-02 12:31
	    2007-01-02 12:31
   2007-01-02 12:35
	    2007-01-02 12:35
  非常感谢 谢谢高手们
谢谢高手们
 2007-01-02 12:37
	    2007-01-02 12:37
   2007-01-02 12:38
	    2007-01-02 12:38